Sorry to resurrect an ancient thread, but I'm ecstatic that after nearly two months and visits to countless bike shops, I've finally sourced an identical part
Pretty much every lbs I went to had something similar and they just gave them to me for nothing, which was nice. Unfortunately none of them were quite right and didn't sit in the drop out correctly.
So I bit the bullet and went to London town to try my luck. CS gave me a pair that would probably fit ok, but weren't ideal. So I tried Condor. Bingo! The guy disappeared downstairs for a bit and returned with an identical part. (I'm guessing he just whipped it off a hub in stock)
He then had the audacity to nonchalantly charge me £3.50 for it! Not a lot of money, I know - but every other shop had just given them away. I wasn't going to argue as I now had the precious little thingy that was going to enable me to get the fixer back on the road.
I excitedly texted TOKaMak to let him know I'd be back on fixed very soon - his response made I chuckle: "3.50? Does it say fucking Rapha on it or something?"